Control Rods
As the name says, Control Rod is a control device that is use to provide precise and adjustable control of reactivity in the reactor core.
When reactivity is controlled, the power output is also controlled.
Basically, control rods function by absorbing neutrons from generating another nuclear reaction.
Nuclear reaction or fission generates heat.
If the heat generated is not controlled, overheating will occur.
This will make the the reactor components such as the fuel rods melt.
Control rods also function as a safety device.
In the event of emergengy, control rods can be release completely to shut down the reactor.
Control rods materials:-
- Silver, Ag
- Indium, In
- Cadmium, Cd
- Boron, B
- Hafnium, Hf
In a more proper way of writing, the purpose of control rods includes:-
- Coarse control and/or to remove reactivity in relatively large amounts - Shim rods.
- Fine control and to maintain desired power or temperature - Regulating rods.
- Provides fast shut down in the event of unsafe and emergency condition - Safety rods.
 |
Image from Google -Click for larger view- |
 |
| Image from Google -Click for larger view- |
 |
| Image from Google -Click for larger view- |
Again, we can see that Nuclear Reactor is full of safety features!
No comments:
Post a Comment